- API client class: added methods/functions count_alarms(), list_current_channels(), list_dpi_stats()
- API client class: added getter/setter methods set_debug, get_last_results_raw and get_last_error_message
- API client class: improved code efficiency when handling responses
- API browser tool: added support for count_alarms(), list_current_channels(), list_dpi_stats()
- API browser tool: minor code cleanup
- examples: updated examples with new set_debug() method/function